Airworthiness is not a big deal; you get a DAR to examine it and certify it, which he does by filling out a form online that also generates the special operating limitations. Of course unfamiliarity with this helicopter will make that take a bit longer. The special operating limitations define the center point of the 25-mile radius for phase 1 (radius varies but is usually 25 miles), and after 40 flight-hours you're automatically and implicitly transitioned into phase 2, with no additional paperwork or inspections needed typically. Flight over congested areas is allowed implicitly when phase 1 is complete, unless the DAR for some reason issues restrictive operating limitations.